By how much must the sample size n be increased if the width of the CI (7.5)

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By how much must the sample size n be increased if the width of the CI (7.5) is to be halved? If the sample size is increased by a factor of 25, what effect will this have on the width of the interval? Justify your assertions.

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Probability And Statistics For Engineering And The Sciences

ISBN: 9781305251809

9th Edition

Authors: Jay L. Devore

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Question Posted: Jan 27, 2017 11:14 AM

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By how much must the sample size n be increased if the width of the CI (7.5)

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If 2z 2 N4 and we increase the sample size b...View the full answer

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